Riddle: Which two-digit number has 3 tens and twice as many ones? (Video)

School & Science β–Ά 0:25

The riddle

I'm a two-digit number. My tens digit is 3, and my ones digit is double my tens digit. What number am I?

Show hint
Work out the ones digit first.
Show answer
36The tens digit is 3. Double 3 is 6, so the ones digit is 6, and the number is 36.

About this riddle

A place-value riddle for early math. Work out each digit on its own, then put them together to make the number.

It comes from Number Riddles, a collection of 30 riddles with hints and answers, sorted from easy to tricky. Play the video, pause it when the riddle ends, and see if you can solve it before the answer appears.

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